1 files changed, 13 insertions, 1 deletions
diff --git a/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp b/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
index 93e7362c..974ee98f 100755
--- a/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
+++ b/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
@@ -2064,7 +2064,19 @@ namespace Diligent
 
         auto Format = ResolveAttribs.Format;
         if (Format == TEX_FORMAT_UNKNOWN)
-            Format = SrcTexDesc.Format;
+        {
+            const auto& SrcFmtAttribs = GetTextureFormatAttribs(SrcTexDesc.Format);
+            if (!SrcFmtAttribs.IsTypeless)
+            {
+                Format = SrcTexDesc.Format;
+            }
+            else
+            {
+                const auto& DstFmtAttribs = GetTextureFormatAttribs(DstTexDesc.Format);
+                DEV_CHECK_ERR(!DstFmtAttribs.IsTypeless, "Resolve operation format can't be typeless when both source and destination textures are typeless");
+                Format = DstFmtAttribs.Format;
+            }
+        }
 
         auto DXGIFmt = TexFormatToDXGI_Format(Format);
         auto SrcSubresIndex = D3D11CalcSubresource(ResolveAttribs.SrcMipLevel, ResolveAttribs.SrcSlice, SrcTexDesc.MipLevels);